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IIS does not list a website that matches the launch url
...ny problems (prior to that i got error messages stating that i have to manually adjust these)
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What is the most efficient way to concatenate N arrays?
...w array that concatenates two existing arrays, it appears concat() is generally faster. For the case of concatenating an array onto an existing array in place, push() is the way to go. I updated my answer.
– Tim Down
Apr 22 '12 at 22:12
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Polymorphism vs Overriding vs Overloading
...xample when teaching a class. The canonical "Bank Account" class didn't really express the "abstractness" of the base class. The other canonical example (Animal, make noise) was too abstract for understanding. I was looking for a single base with too obvious subclasses. Actually, goPee() was the...
What is the difference between .*? and .* regular expressions?
...nsider the input 101000000000100.
Using 1.*1, * is greedy - it will match all the way to the end, and then backtrack until it can match 1, leaving you with 1010000000001.
.*? is non-greedy. * will match nothing, but then will try to match extra characters until it matches 1, eventually matching 101...
Differences in boolean operators: & vs && and | vs ||
...)){
}
"Short-circuiting" means the operator does not necessarily examine all conditions. In the above examples, && will examine the second condition only when a is not null (otherwise the whole statement will return false, and it would be moot to examine following conditions anyway), so th...
Should I use 'has_key()' or 'in' on Python dicts?
...ivalent semantically, but performance-wise the latter is much slower (O(n) vs O(1)). I've seen people do the "in dict.keys()" thinking it's more explicit & therefore better.
– Adam Parkin
Nov 9 '11 at 20:55
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Add Variables to Tuple
... I think its important to note that tuples are immutable - they cannot actually be modified. What this solution does is create a new tuple based on two existing tuples.
– That1Guy
Jan 16 '19 at 20:58
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CSS: Animation vs. Transition
...ed, or vice versa.
If you want to perform something that does not specifically involve a start state and an end state, or you need more fine grain control over the keyframes in a transition, then you've got to use an animation.
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The name does not exist in the namespace error in XAML
...e ABCDE does not exist in the namespace clr-namespace:ABC". But you can totally build your project successfully, there is only a small inconvenience because you can not see the UI designing (or just want to clean the code).
Try to do these:
In VS, right click on your Solution -> Properties -&...
COUNT(*) vs. COUNT(1) vs. COUNT(pk): which is better? [duplicate]
...T(field) or COUNT(*), and stick with it consistently, and if your database allows COUNT(tableHere) or COUNT(tableHere.*), use that.
In short, don't use COUNT(1) for anything. It's a one-trick pony, which rarely does what you want, and in those rare cases is equivalent to count(*)
Use count(*) fo...